Green demolition technology of reinforced concrete slab: Application of soundless chemical demolition agents and its evaluation system

Jiang, Zuowen; Zheng, Wenzhong; Wang, Ying; Li, Sheng; Sun, Linqi

doi:10.1002/suco.202201162

Cited by 4 publications

References 43 publications

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Experimental verification of full‐scale silo structure demolition: Investigating successive column removal with finite element method and progressive collapse simulation through blast load

Yuzbasi

2024

Structural Concrete

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This article presents an experimental and numerical study of the collapse behavior of a 60‐m‐high cement silo structure under blast loading, analyzed using SAP2000 (FEM‐NDA) and LS‐DYNA (FEM‐NDA‐explicit code) models to simulate the collapse mechanism. Considering the seismic events in Kahramanmaras, Turkiye, on February 6, 2023, with magnitudes of 7.8 and 7.6, the necessity for the explosive demolition of hundreds of thousands of structures has underscored the urgency of rapid planning. This situation requires a particular focus on the expeditious analysis of demolition methodologies. The study includes pre‐planning stages, sudden column removals and the detonation of columns with blast loads for the controlled demolition of a full‐scale existing silo structure. To overturn the structure, the columns inside the wedge region were suddenly removed using SAP2000 nonlinear dynamic analysis (NDA) to understand the subsequent load redistribution. A study was conducted to compare the use of shell and plate elements in SAP2000 for a 1‐m‐thick wall silo. The results showed that using shell elements provided relatively closer results to real values than plate elements. For the explicit analysis part, the structural components were modeled as solid materials, and columns were detonated with blast loads. The models and actual demolition frame‐by‐frame results of the structure were compared, and the numerical model's accuracy was validated using experimental data from stationary cameras and drones, with the explicit analysis results found to be in agreement. While explicit analysis yielded results more in line with real data, SAP2000 NDA provided relatively distant results, although SAP2000‐NDA was more time‐efficient compared to explicit analysis models. However, a preliminary evaluation can be made if the characteristics of both programs are understood. The documented information on full‐scale structure demolition and findings presented in this paper will serve as a resource for future studies and provide a reference for researchers.

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Experimental verification of full‐scale silo structure demolition: Investigating successive column removal with finite element method and progressive collapse simulation through blast load

Yuzbasi

2024

Structural Concrete

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Technology for Performing Emergency Dismantling Works at an Industrial Facility Destroyed Due to Military Actions

Naumov,

Bilokon,

Sokolov

et al. 2024

Lecture Notes in Civil Engineering

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This investigation develops an innovative dismantling methodology for industrial facilities impacted by a 2022 missile strike, aiming to restore operations with minimal interruption. The purpose of the research is to establish a rapid and secure dismantling process that integrates seamlessly with ongoing industrial activities, ensuring safety and efficiency. It focuses on the damaged workshop facilities, analyzing the affected structures and utilities to inform emergency dismantling and recovery efforts. Advanced technologies, including specialized excavator attachments and carts, are introduced for precise dismantling, maintaining the integrity of adjacent structures. Our findings illustrate the efficacy of integrating advanced dismantling technologies within active industrial settings, significantly enhancing operational safety and efficiency. The successful application of these methodologies not only aids in the rapid recovery of damaged facilities but also sets a new benchmark for emergency industrial operations. Object of Research: The primary focus is on the damaged industrial workshop facilities, specifically examining the structures, utilities, and operational frameworks affected by the missile strike. This includes the physical site, the technological layout, and the existing industrial processes within the context of emergency dismantling and restoration efforts.

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Contribution of soundless chemical demolition and induction heating demolition to carbon emissions reduction in urban demolition industry

Sun,

Jiang,

et al. 2023

Energy and Buildings

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Green demolition technology of reinforced concrete slab: Application of soundless chemical demolition agents and its evaluation system

Cited by 4 publications

References 43 publications

Experimental verification of full‐scale silo structure demolition: Investigating successive column removal with finite element method and progressive collapse simulation through blast load

Experimental verification of full‐scale silo structure demolition: Investigating successive column removal with finite element method and progressive collapse simulation through blast load

Technology for Performing Emergency Dismantling Works at an Industrial Facility Destroyed Due to Military Actions

Contribution of soundless chemical demolition and induction heating demolition to carbon emissions reduction in urban demolition industry

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